Feature: 1. EASY TO OPEN AND CLOSE: Dog screen door is more convenient to open and close. Insert bolt can prevent pets from running around on their own. 2. STRONG AND DURABLE: Screen pet door insert bolt column design thickened, making the inner page strong and more durable. 3. DOUBLE MAGNETIC SUCTION: Doggie door adopts double magnetic suction design, which can effectively suck the inner page and close the window automatically after the pet leaves. 4. ABS MATERIAL: Cat screen door is made of ABS material, thickened transparent tinting film, clearly visible, securely blocking access to the door. 5. SCOPE OF APPLICATION: Lockable pet screen door is suitable for dogs and cats, perfect for your pet to use when going to the bathroom or playing. Specification: Item Type: Dog Screen Door Material: ABS Size: Approx. 31.5x25cm / 12.4x9.8in. Package List: 1 x Dog Screen Door6 x Screws6 x Nut1 x English Manual Note: 1. The pet door itself does not contain a screen, it needs to be cut from your screen door and placed into the insert.2. In the process of disassembling and separating the door frame, it is recommended to use tools such as a flat head screwdriver or putty knife.3. Be careful not to pinch your hand when disassembling, it is recommended that 2 people operate the installation.4. When separating the door inserts, pay attention to the snap locks, if they fall off, they need to be re installed.5. Provide screws and nuts, pay attention to correspondence when installing.6. After the installation is completed, push the inner page lightly by hand to check whether the door is working properly.7. Please allow some error due to manual measurement.